[Solved] It has been suggested that the fraternal birth-order effect is a result of A) erotic plasticity. B) refractory periods. C) a maternal immune response. D) mass-media norms. Registration Statement: A set of documents, including a prospectus, filed with the Securities and Exchange Commission (SEC) that discloses important information regarding a company's securities offering. Prospectus: An official document that companies issue to potential investors, detailing the financial security they are offering. Securities And Exchange Commission: The U.S. government agency responsible for regulating the securities markets and protecting investors. Accredited Investor: A private investor who is allowed to accept private securities offerings under certain specific guidelines the SEC sets.